package com.hill;

import java.util.ArrayList;

class Apple {
    private static  long counter;
    private final long id =counter++;
    public long id(){return id;}
}
public class AppleOrange {
    public static void main(String[] args) {
        ArrayList<Apple> apples = new ArrayList<Apple>();
        for (int i=0;i<3;i++)
            apples.add(new Apple());
        for(int i=0;i<apples.size();i++)
            System.out.println(apples.get(i).id());
        for (Apple c:apples){
            System.out.println(c.id());
        }
    }

}
